[Snyk] Upgrade socket.io from 1.7.4 to 4.5.1#20

ukmadlz wants to merge 1 commit intomasteribm-watson-data-lab/simple-notification-service:masterfrom

snyk-upgrade-8ae3889ad4f759f625cf5595043dcfefibm-watson-data-lab/simple-notification-service:snyk-upgrade-8ae3889ad4f759f625cf5595043dcfefCopy head branch name to clipboard